These tools go beyond easy drawing of connections and devices. Normally they're incorporated into the whole IC design flow and connected to additional EDA tools for verification and simulation of this circuit under design.
In electrical and electronic business, a design diagram is often utilized to describe the design of equipment.  Initial schematics were done manually, with standardized templates or off-the-shelf glue symbols, however today electronic design automation applications (EDA or"electric CAD") can be used.
In electrical power systems design, a schematic drawing known as a one-line diagram is often utilized to represent substations, distribution methods as well as whole electric power grids. All these diagrams compress and simplify the exact facts which would be repeated on each individual phase of a three-phase method, showing only one component rather than three. Electrical diagrams for switchgear frequently have common device functions designate by standard function numbers.
A schematic, or schematic diagram, is a representation of those components of a system using abstract, graphic symbols rather than realistic pictures. A schematic usually omits all details that aren't related to the advice the schematic is intended to convey, and may add unrealistic elements that aid comprehension. As an example, a subway map intended for passengers can signify a subway station using a dot; the scatter does not resemble the actual station at all but gives the viewer information without any unnecessary visual clutter. A schematic diagram of this compound process uses symbols to represent the vessels, piping, valvesand pumps, and other elements of the system, emphasizing their interconnection paths and suppressing physiological information. In a digital circuit diagram, the layout of the symbols might not resemble the layout in the circuit. In the schematic diagram, the symbolic components are organized to be easily interpreted by the viewer.
A semi-schematic diagram combines some of these abstraction of a just schematic diagram along with other elements displayed as realistically as you can, for various reasons.
In electronic design automation, even until the 1980s schematics were almost the only formal representation for circuits. More recently, together with the progress of computer engineering, other representations have been introduced and specialized computer languages were developed, because using all the explosive development of the complexity of electronic circuits, traditional schematics have become less functional.
Schematic diagrams are used extensively in repair guides to help users understand the interconnections of components, and also to present graphical instruction to help out with rebuilding and simplifying mechanical assemblies. Many motorcycle and automotive repair manuals devote a substantial number of webpages into schematic diagrams.